div.container {
margin-top: 50px;
}

img.go {
  width: 300px;
  max-width: 100%;
  height: auto;
}

img.gosmaller {
  width: 200px;
  max-width: 100%;
  height: auto;
}

video.go {
  width: 300px;
  max-width: 100%;
  height: auto;
}

@media only screen and (max-width: 1023px) {
  img.go {
    width: 100%;
  }
  video.go {
    width: 100%;
  }
}